/* css/extra.css */

/* --- Trusted By Logo Carousel --- */
.logo-carousel-section .logo-item {
    background-color: transparent !important; 
}

/* --- PDF Live Page Advanced UI --- */
body#pdf-live-page .app-container > main {
    padding-top: 0; 
}

.pdf-live-main {
    display: flex;
    flex-direction: column;
    background-color: var(--bg-main); 
}

.pdf-page-title {
    margin-top: calc(var(--header-height-actual) + 1.5rem); 
    margin-bottom: 1.5rem; 
    color: var(--text-primary);
}

/* PDF Selector Section - Collapsible */
.pdf-selector-section {
    padding: 1rem 0; 
    background-color: #f8f9fa; 
    border-bottom: 1px solid var(--separator-color);
    flex-shrink: 0; 
}
.pdf-selector-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    padding: 0.5rem 0; 
}
.pdf-selector-header .pdf-page-title { 
    margin-top: 0;
    margin-bottom: 0;
    font-size: 1.5rem; 
}
.selector-toggle-btn {
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    display: none; 
}
.selector-toggle-btn svg {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
    transition: transform 0.3s ease;
}
.collapsible-content {
    max-height: 1000px; 
    overflow: hidden;
    transition: max-height 0.4s ease-in-out, padding-top 0.4s ease-in-out, padding-bottom 0.4s ease-in-out, opacity 0.3s ease-in-out;
    padding-top: 1rem; 
    padding-bottom: 1rem;
    opacity: 1;
}
.collapsible-content.collapsed {
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    opacity: 0;
    overflow: hidden; 
}
@media (min-width: 768px) {
    .selector-toggle-btn {
        display: inline-flex; 
    }
    .pdf-selector-header[aria-expanded="false"] .selector-toggle-btn svg {
        transform: rotate(-90deg);
    }
}

.pdf-thumbnail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.5rem;
}
.pdf-thumbnail-card {
    background-color: var(--bg-card);
    border-radius: var(--card-radius);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.2s ease-out, box-shadow 0.2s ease-out;
    border: 3px solid transparent;
    position: relative; 
}
.pdf-thumbnail-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}
.pdf-thumbnail-card.active {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-color), 0 8px 20px rgba(0, 122, 255, 0.2);
    transform: translateY(-2px);
}
.pdf-thumbnail-card.recommended::before { 
    content: 'Recommended';
    position: absolute;
    top: 8px;
    right: -30px; 
    background-color: var(--secondary-color); 
    color: white;
    padding: 3px 35px; 
    font-size: 0.7rem;
    font-weight: bold;
    transform: rotate(45deg);
    transform-origin: top right;
    z-index: 1;
    border-radius: 0 0 0 3px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}
.pdf-thumbnail-card img {
    width: 100%;
    height: 250px; 
    object-fit: cover; 
    display: block;
    border-bottom: 1px solid var(--separator-color);
}
.pdf-thumbnail-card .thumb-title {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* PDF Viewer Container Section & Area */
.pdf-viewer-container-section {
    flex-grow: 1; 
    display: flex;
    flex-direction: column;
    padding: 1.5rem; 
    overflow: hidden; 
    position: relative; 
}
.pdf-viewer-area { 
    flex-grow: 1;
    display: flex; 
    flex-direction: column; 
    position: relative; 
    overflow: hidden; 
    min-height: 300px; 
}
.pdf-canvas-wrapper {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: auto; 
    background-color: #e9ecef; 
    border-radius: var(--card-radius);
    padding: 0; 
    /* margin-bottom: 1rem; No margin-bottom, controls will be part of this in fullscreen or styled below */
    position: relative; 
}
#pdf-canvas {
    max-width: 100%;
    max-height: 100%; 
    height: auto !important; 
    display: block;
    margin: 0 auto; 
    display: none; 
}
#pdf-canvas.loaded {
    display: block;
}
.pdf-canvas-wrapper:fullscreen {
    padding: 0;
    background-color: #333; 
    border-radius: 0;
    box-shadow: none;
    width: 100vw !important; 
    height: 100vh !important;
    position: fixed !important; 
    top:0 !important; 
    left:0 !important;
    z-index: 2147483645; 
    display: flex; 
    align-items: center;
    justify-content: center;
}
.pdf-canvas-wrapper:fullscreen #pdf-canvas {
    border-radius: 0;
    box-shadow: none;
    max-width: 100%; 
    max-height: 100%;
}

.pdf-viewer-placeholder {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
}
.pdf-viewer-placeholder.hidden {
    display: none;
}

/* Glassmorphism Controls */
.pdf-controls-glass {
    margin: 1rem auto 0 auto; /* Default position below canvas wrapper */
    display: flex;
    flex-wrap: nowrap; 
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    background: rgba(230, 230, 230, 0.6); 
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 50px; 
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1); 
    border: 1px solid rgba(255, 255, 255, 0.18); 
    z-index: 5; 
    opacity: 0; 
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease, bottom 0.3s ease, transform 0.3s ease; /* Added transform */
    max-width: fit-content; 
    box-sizing: border-box;
    position: relative; /* Default static positioning relative to its parent section */
}

/* Styles for controls when canvas-wrapper is fullscreen AND controls are INSIDE it */
.pdf-canvas-wrapper:fullscreen .pdf-controls-glass {
    position: fixed !important; /* Position fixed within the fullscreen element */
    bottom: 1.5rem !important;
    left: 50% !important;
    transform: translateX(-50%) !important; /* Center it */
    background: rgba(30, 30, 30, 0.75) !important; 
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    z-index: 10 !important; /* Ensure it's above the canvas within fullscreen */
    opacity: 1 !important; 
    visibility: visible !important;
    margin-top: 0 !important; /* Reset margin-top */
}
.pdf-canvas-wrapper:fullscreen .pdf-controls-glass .pdf-ctrl-btn,
.pdf-canvas-wrapper:fullscreen .pdf-controls-glass .page-info {
    color: #f0f0f0 !important; 
}
.pdf-canvas-wrapper:fullscreen .pdf-controls-glass .pdf-ctrl-btn:hover {
    background: rgba(255, 255, 255, 0.25) !important;
}


.pdf-controls-glass.visible { /* For non-fullscreen visibility */
    opacity: 1;
    visibility: visible;
}
.pdf-ctrl-btn {
    background: transparent;
    border: none;
    color: var(--text-primary); 
    padding: 0.5rem;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease;
    flex-shrink: 0; 
}
.pdf-ctrl-btn:hover {
    background: rgba(0, 0, 0, 0.08);
}
.pdf-ctrl-btn svg {
    width: 22px;
    height: 22px;
}
.page-info {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    padding: 0 0.5rem;
    min-width: 80px; 
    text-align: center;
    white-space: nowrap; 
}

/* Rotate Button - Mobile specific in fullscreen */
.pdf-rotate-btn-mobile {
    display: none !important; 
}
/* Show rotate button when its parent (.pdf-controls-glass) is part of a fullscreen .pdf-canvas-wrapper */
.pdf-canvas-wrapper:fullscreen .pdf-rotate-btn-mobile {
    /* JS will handle display:inline-flex based on orientation */
}


/* Rotate Suggestion Overlay */
.pdf-rotate-suggestion-overlay { 
    position: fixed; 
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(0,0,0,0.85); 
    color: white;
    padding: 2rem;
    text-align: center;
    z-index: 2147483640; /* Below controls if controls are also fixed */
    display: none; 
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem; 
    font-size: 1.1rem;
    box-sizing: border-box;
    opacity: 0; 
    transition: opacity 0.3s ease-in-out;
}
.pdf-rotate-suggestion-overlay.visible {
    display: flex !important; 
    opacity: 1;
}
.pdf-rotate-suggestion-overlay .rotate-device-icon svg {
    width: 64px; 
    height: 64px;
    margin-bottom: 1rem;
    animation: gentle-rotate 4s ease-in-out infinite;
}
@keyframes gentle-rotate {
    0% { transform: rotate(0deg); }
    25% { transform: rotate(-15deg); }
    50% { transform: rotate(0deg); }
    75% { transform: rotate(15deg); }
    100% { transform: rotate(0deg); }
}


/* Responsive adjustments for PDF page */
@media (max-width: 767px) {
    .pdf-page-title {
        margin-top: 1.5rem;
        font-size: 1.6rem;
    }
    .pdf-selector-header .pdf-page-title { 
        font-size: 1.3rem; 
    }
    .pdf-thumbnail-grid {
        grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); 
        gap: 0.75rem;
    }
    .pdf-thumbnail-card img {
        height: 180px; 
    }
    .pdf-viewer-container-section { 
        padding: 0.75rem; 
    }
    .pdf-canvas-wrapper {
        padding: 0; 
        margin-bottom: 0.75rem; 
    }
    .pdf-controls-glass:not(.pdf-canvas-wrapper:fullscreen .pdf-controls-glass) { /* Styles for non-fullscreen controls on mobile */
        padding: 0.6rem 1rem; 
        gap: 0.4rem; 
        margin-top: 0.5rem; 
        width: 100%; 
        max-width: 100%; 
        justify-content: center; 
        overflow-x: auto; 
        -webkit-overflow-scrolling: touch; 
        scrollbar-width: none; 
    }
    .pdf-controls-glass:not(.pdf-canvas-wrapper:fullscreen .pdf-controls-glass)::-webkit-scrollbar { 
        display: none;
    }

    /* Styles for controls when in fullscreen on mobile */
    .pdf-canvas-wrapper:fullscreen .pdf-controls-glass {
        padding: 0.6rem 0.5rem; /* Tighter padding for mobile fullscreen */
        gap: 0.25rem;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        max-width: calc(100% - 2rem); /* Ensure it fits */
        justify-content: center;
    }
     .pdf-canvas-wrapper:fullscreen .pdf-controls-glass::-webkit-scrollbar {
        display: none;
    }


    .pdf-ctrl-btn svg {
        width: 18px; 
        height: 18px;
    }
    .page-info {
        font-size: 0.75rem;
        min-width: 65px; 
        padding: 0 0.25rem;
    }
}

@media (max-width: 400px) { 
    .pdf-controls-glass:not(.pdf-canvas-wrapper:fullscreen .pdf-controls-glass) {
        gap: 0.25rem;
        padding: 0.5rem 0.75rem;
        justify-content: flex-start; 
    }
    .pdf-canvas-wrapper:fullscreen .pdf-controls-glass {
        gap: 0.1rem; /* Even tighter for very small screens in fullscreen */
        padding: 0.5rem;
    }
    .pdf-canvas-wrapper:fullscreen .pdf-controls-glass .page-info {
        font-size: 0.7rem;
        min-width: auto; /* Allow to shrink more */
        padding: 0 0.1rem;
    }
     .pdf-canvas-wrapper:fullscreen .pdf-controls-glass .pdf-ctrl-btn svg {
        width: 16px;
        height: 16px;
    }
}

/* Ensure overlay is hidden when not fullscreen or on desktop */
.pdf-canvas-wrapper:not(:fullscreen) ~ .pdf-rotate-suggestion-overlay { /* If it's a sibling */
    display: none !important;
    opacity: 0 !important;
}
@media (min-width: 768px) {
    /* No large overlay on desktop, no rotate button in nav */
    .pdf-rotate-suggestion-overlay,
    .pdf-rotate-btn-mobile {
        display: none !important; 
        opacity: 0 !important;
    }
}